Applied Physics B

, Volume 99, Issue 1, pp 229–234

Influence of surface roughness on the elastic-light scattering patterns of micron-sized aerosol particles

  • J.-C. Auger
  • G. E. Fernandes
  • K. B. Aptowicz
  • Y.-L. Pan
  • R. K. Chang
Article

DOI: 10.1007/s00340-010-3914-0

Cite this article as:
Auger, JC., Fernandes, G.E., Aptowicz, K.B. et al. Appl. Phys. B (2010) 99: 229. doi:10.1007/s00340-010-3914-0

Abstract

The relation between the surface roughness of aerosol particles and the appearance of island-like features in their angle-resolved elastic-light scattering patterns is investigated both experimentally and with numerical simulation. Elastic scattering patterns of polystyrene spheres, Bacillus subtilis spores and cells, and NaCl crystals are measured and statistical properties of the island-like intensity features in their patterns are presented. The island-like features for each class of particle are found to be similar; however, principal-component analysis applied to extracted features is able to differentiate between some of the particle classes. Numerically calculated scattering patterns of Chebyshev particles and aggregates of spheres are analyzed and show qualitative agreement with experimental results.

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • J.-C. Auger
    • 1
  • G. E. Fernandes
    • 1
  • K. B. Aptowicz
    • 2
  • Y.-L. Pan
    • 3
  • R. K. Chang
    • 1
  1. 1.Center for Laser Diagnostics and Department of Applied PhysicsYale UniversityNew HavenUSA
  2. 2.Department of PhysicsWest Chester UniversityWest ChesterUSA
  3. 3.U.S. Army Research LaboratoryAdelphiUSA